He's willing

"You got it man!" Tony agreed without hesitation, "Take her."

Frank looked the sprawled and gasping girl, then grinned at Tony. "Clean her up. If she's got some pretty lingerie, put it on her. I'll wait in your bedroom." The husband nodded, grinning and dragged his wife to his feet, pulling her trembling body into the bathroom.

Frank lay back on the bed and relaxed, ignoring Tony when he came in to retrieve some items from a suitcase. He stared at the ceiling, feeling immensely satisfied with himself, and looking forward to finishing the job with the formerly snotty young woman.

Some time later Tony tapped on the door and brought Sandra in. She looked somewhat recovered from the orgasmic cataclysms, but her eyes were still slightly glazed and unfocussed.

She wore a red lace camisole and matching panties, her eyes looking at Frank as a mouse might look at a cat. He smiled coldly and stood up, picking up his belt from the bed and nodding at Tony to leave. Sandra looked after him for a moment, then looked back at Frank and shivered with anticipation and anxiety.

Frank put his hand on her shoulder and turned her, watching her eyes watch him as she offered no resistance. She whimpered slightly as he pulled her hands behind her and used his belt to bind her wrists.

He let his hands roam over her trembling body, savouring her gasps and her writhing against him, biting her ear and the taut flesh of her neck.

"You're...you're my master...the other...my husband...but you're my master...he said...said he'd given me to you...to thank you...for...for training me...oh god...you didn't need to ask...you could have me anytime...use me...fuck me...my master..."

"You're a horny slut, aren't you?"

"Yes...oh god yes master...use me...as you wish...master...please..." She looked at him with wanton eyes, her ripe body squirming as she tested the bond of his belt, growing more excited as she did.

"There's no escape for you," he grinned fiercely, pushing her onto the bed and pulling her panties aside to reveal her sodden cunt.

"I'm helpless....so helpless...in your power...oh God take me...just take me!"

"You got it," he growled, thrusting balls deep into her sodden cunt, making her squeal excitedly and buck against him. He could feel her quiver as her spasms started, and thrust hard, fucking her to orgasm after orgasm as he snarled down at her.